Big Brother is listening. Companies use “bossware” to listen to their employees when they’re near their computers. Multiple “spyware” apps can record phone calls. And home devices such as Amazon’s Echo can record everyday conversations. A new technology, called Neural Voice Camouflage, now offers a defense. It generates custom audio noise in the background as you talk, confusing the artificial intelligence (AI) that transcribes our recorded voices.
The new system uses an “adversarial attack.” The strategy employs machine learning—in which algorithms find patterns in data—to tweak sounds in a way that causes an AI, but not people, to mistake